Shoe upper



FIG. 1 is a right side elevational view of a shoe upper showing my new design;

The broken line showing of the sole in FIG. 1 is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a shoe upper, as shown and described. 